The study on the square pulse linear transformer driver (LTD)

Wenbo Yan; Chao Huang; Aiping Yi; Zhengge Chen; Gaopeng Li; Xueqing Zhao; Yingchao Wan; Quanxi Xue; Yanlong Shen; Ke Huang; Hao Wang; Feng Zhu; Yousheng Wang

doi:10.1117/12.2656000

22 December 2022 The study on the square pulse linear transformer driver (LTD)

Wenbo Yan, Chao Huang, Aiping Yi, Zhengge Chen, Gaopeng Li, Xueqing Zhao, Yingchao Wan, Quanxi Xue, Yanlong Shen, Ke Huang, Hao Wang, Feng Zhu, Yousheng Wang

Author Affiliations +

Proceedings Volume 12459, Sixth International Symposium on Laser Interaction with Matter; 1245917 (2022) https://doi.org/10.1117/12.2656000
Event: Sixth International Symposium on Laser Interaction with Matter (LIMIS 2022), 2022, Ningbo, China

Abstract

The square pulse output of Linear transformer driver (LTD) is of great interest for excimer lasers, where the efficiency can be greatly improved in this way. The design of square pulse output LTD within the single cavity was presented, then the influence of jitter and loop inductance on square pulse output was studied, it can be found that the higher the value of the jitter and loop inductance, the more the risetime of the voltage pulse, which hinders the shaping of the square pulse output. Then the method to change the square pulse width by varying the triggering times was presented, through the simulation, it is found that when the triggering interval is set to 15s, the square pulse characteristics of the voltage output are more obvious, the flat top is flat, and the pulse width is wider. The bricks within the single cavity can be designed by two methods, where the one is using the same sized capacitors, the other is using the different sized capacitors to synthesize a flat voltage pulse, the choice of the two methods should be based on the cost and requirements of the excimer laser, including the amplitude of the output voltage, the pulse width and the laser beam quality. The reference of designing the square pulse LTD can be provided by this paper

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Wenbo Yan, Chao Huang, Aiping Yi, Zhengge Chen, Gaopeng Li, Xueqing Zhao, Yingchao Wan, Quanxi Xue, Yanlong Shen, Ke Huang, Hao Wang, Feng Zhu, and Yousheng Wang "The study on the square pulse linear transformer driver (LTD)", Proc. SPIE 12459, Sixth International Symposium on Laser Interaction with Matter, 1245917 (22 December 2022); https://doi.org/10.1117/12.2656000

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KEYWORDS

Capacitors

Inductance

Switches

Capacitance

Transformers

Monte Carlo methods

Excimer lasers

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